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Finding the Fourth Proportional to 79,493.29, 109,673.58 and 49,267.58

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Solution

The fourth proportional to 79,493.29, 109,673.58 and 49,267.58 is: 67,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,493.29 : 109,673.58 = 49,267.58 : x
  2. Step 2: Convert to fraction form
    79,493.29/109,673.58 = 49,267.58/x
  3. Step 3: Cross multiply
    79,493.29x = 109,673.58 × 49,267.58
  4. Step 4: Simplify right side
    79,493.29x = 5,403,351,739.44
  5. Step 5: Solve for x
    x = 5,403,351,739.44/79,493.29
  6. Step 6: Final answer
    x = 67,972.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.